Electronic delay circuit for firing ignition element

Details Electronic delay circuit for firing ignition element Electronic delay circuit for firing ignition element

1993-03-15

1994-11-15

Pihulic, Daniel T.

Ammunition and explosives

Igniting devices and systems

Ignition or detonation circuit

102206, 102215, F42C 1100, F23Q 2100

Patent

active

053637658

ABSTRACT:
An electronic delay circuit for firing an ignition element. The delay circuit includes a capacitor which stores electric energy supplied from an electric blasting machine, an oscillator generating a clock pulse train, a circuit for over-exciting the oscillator, a counter which counts clock pulses of the clock pulse train, and a circuit for maintaining a reset state of the counter for a predetermined time period after the electric energy is supplied. The counter produces a trigger signal when it counts a predetermined number of the clock pulses, and the electric energy stored in the capacitor is discharged to the ignition element. Since the oscillator enters into the steady state in a very short time by the over-excitation, the delay circuit has large resistance to external noise.

REFERENCES:
patent: 4445435 (1984-05-01), Oswald
patent: 4560954 (1985-12-01), Leach
patent: 5041802 (1991-08-01), Wei et al.
patent: 5117756 (1992-06-01), Goffin, II

Affiliated with

Also associated with

Rating

Electronic delay circuit for firing ignition element does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic delay circuit for firing ignition element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic delay circuit for firing ignition element will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1090170